Thanks for posting these, purrin. What do you think of them, assuming you had a chance to listen to them? I felt they did a lot of things well (and the HM5 model was priced reasonably), but I just couldn't really warm up to them. Something strange about their presentation, IMO. I could definitely hear the dip around 300Hz when I first put them on, though I couldn't immediately identify it until looking at graphs. I wasn't expecting the treble to look as peaky in some places as it does, but that would actually explain a lot of what I'm hearing.

It seems like there'll be an update to the Fa-003. I've been eyeing this can for a long time now but the announcement is making me want to wait a little longer for the revised edition. They even posted a new square wave response to compare with the old one: